JPH0116249Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates primarily to direction indicator lights used in motorcycles, and is particularly intended to prevent the reflector from coming off when replacing light bulbs and to expand the effective area of the reflector.

Generally, this type of lamp has a reflecting mirror disposed inside the housing to improve the irradiation efficiency. The reflecting mirror is fixed by tightening the outer periphery of the reflecting mirror, which is projected into a flat plate, when the housing and lens are bolted together. However, with this structure, when the lens is removed to replace the lens or light bulb, the reflector also comes off, which tends to cause problems such as damage or staining of the reflective surface.

In order to solve the above-mentioned disadvantages, a configuration as shown in FIG. 3 has been proposed. That is, in addition to the bolts c and c that integrate the housing a and the lens b, bolts e and e that fix the reflector d and the housing a are separately provided to achieve integration.
With this structure, the reflector d is fixed to the housing a regardless of whether the lens b is attached or detached, and the above-mentioned disadvantages are eliminated.

However, in the case of the structure shown in Fig. 3, although the above improvement can be achieved, as a result of providing the bolt holes f and f in the reflector d through which the bolts e and e are inserted, respectively, the effective reflection area of the reflector d is reduced and the efficiency is reduced. This causes the problem that good irradiation light cannot be obtained. This is a major obstacle in the case of lamps for motorcycles, etc., which require relatively small size and high visibility.

Therefore, this invention provides a lamp body in which the reflector does not come off even when the lens or light bulb is replaced, and the effective reflective area is not impaired.

The lamp body according to this invention will be explained in detail below.

In FIG. 1, 1 is a housing, 2 is a lens, 3 is a reflector fixed to the housing 1, and 4 is a locking plate bolted into the housing 1. Each part has the following configuration and is designed to be integrated. That is, housing 1
The cylindrical portion 1a protrudes from its inner bottom and the bolt holes 1 for fixing the locking plate 4 formed on its outer periphery.
b, 1b, and bolt holes 1c, 1c for bolting the lens 2 to the inner wall of the opening end, and are integrally molded from synthetic resin.

The locking plate 4 includes a ring 4b having an opening 4a in the center into which the base of the light bulb 5 is inserted, and a pair of base locking pieces 4 protruding from the outer periphery of the ring 4b.
c and a pair of locking pieces 4d extending from the outer periphery of the ring 4b. This locking plate 4 is placed on the cylindrical portion 1a of the housing 1 and is integrated by tightening with bolts V ₁ and V ₁ .

The light bulb 5 is inserted into the cylindrical part 1a through the opening 4a, and the bottom part is electrically connected to one pole of the contact part 5a (see FIG. 2), and the base pin 5
b, 5b are respectively locked to the pair of cap locking pieces 4c to establish electrical connection with the other pole.

The reflecting mirror 3 has a plurality of elastic abutting pieces 3a extending from its outer periphery, a plurality of engaging pieces 3b protruding from the outer periphery of the central opening, and bolt holes 3c for inserting bolts V ₂ and V ₂ . , 3c, and are integrally molded from a relatively elastic synthetic resin. The reflector 3 is inserted from the back until the abutting piece 3a abuts the inner wall 1d of the housing 1, and is further inserted against the elasticity of the abutting piece 3a to engage the tip of the engaging piece 3b. Ring 4 of stop plate 4
It is intended to be integrated by being locked to the outer periphery of b. With this configuration, the housing 1
This means that the mirror 3 can be integrated with the reflecting mirror 3 regardless of the assembly of the lens 2.

The lens 2 is integrated by tightening bolts V ₂ and V ₂ into the bolt holes 1c and 1c of the housing 1.

Therefore, according to this invention, reflector 3
The abutting piece 3a elastically abuts against the inner wall 1d of the housing 1, and the engaging piece 3b engages with the locking plate 4 fixed to the housing 1, so that the abutting piece 3a The elasticity increases the locking force, resulting in a strong integration.

As explained above, this invention involves a locking piece formed on the back surface of the reflector being locked to a locking plate fixed to the housing, and this locking force is applied by the contact piece that is in contact with the inner wall of the housing. Since it is more improved, it can be integrated with the housing independently of the lens, and therefore, there is no inconvenience such as the reflecting mirror coming off when replacing the lens or light bulb, making the work easier. Further, not only the above-mentioned replacement work but also assembly work at a factory is easy because the parts do not come off even if they are assembled one after another.

Furthermore, since all the members for fixing the reflecting mirror to the housing are formed on the back surface of the reflecting mirror, efficient irradiation light can be obtained without reducing the effective area of the reflecting mirror. This is extremely advantageous for a direction indicator light for a two-wheeled vehicle, which is desired to be small and provide efficient illumination light.

[Brief explanation of the drawing]

Figures 1 and 2 show the direction indicator light according to this invention, where Figure 1 is an exploded perspective view, Figure 2 is a sectional view, and Figure 3 is a sectional view.
The figure is an exploded perspective view of a conventional product. DESCRIPTION OF SYMBOLS 1... Housing, 1a... Cylindrical part, 2... Lens, 3... Reflector, 3a... Contact piece, 3b... Locking piece, 4... Locking plate, 4a... Opening, 4b
... Ring, 4c... Cap locking piece, 4d... Locking piece.

Claims (1)

[Scope of utility model registration request] A housing having a cylindrical portion at the bottom into which a light bulb cap is inserted, a locking plate having a cap locking piece that engages with a pin of the light bulb and fixed onto the cylindrical portion, and an abutment on the back surface that abuts the inner wall of the housing. A reflector is integrally made of an elastic body and has a locking piece that locks on a contact piece and a locking plate, and a bolt hole formed on the outside of the valve insertion hole in the center. A direction indicator light comprising: a lens that is inserted through the bolt hole and attached to the housing with a bolt.